20057234 has 8 divisors (see below), whose sum is σ = 30162828. Its totient is φ = 10002960.

The previous prime is 20057197. The next prime is 20057239. The reversal of 20057234 is 43275002.

It can be written as a sum of positive squares in 2 ways, for example, as 19758025 + 299209 = 4445^2 + 547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20057239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11837 + ... + 13424.

Almost surely, 2^20057234 is an apocalyptic number.

20057234 is a deficient number, since it is larger than the sum of its proper divisors (10105594).

20057234 is a wasteful number, since it uses less digits than its factorization.

20057234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25660.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20057234 is about 4478.5303392966. The cubic root of 20057234 is about 271.7004433562.

The spelling of 20057234 in words is "twenty million, fifty-seven thousand, two hundred thirty-four".